<?php
header('content-type:text/html;charset=utf-8');


$one = microtime(true);
echo $one;
time($one);
echo('<h2>hahahahahhahahah哈哈哈哈哈</h2>');

for ($i = 0; $i<10000;$i++){
    $a = 1;
}

$two = microtime(true);

echo $two - $one;
time($two);

?>